Wheel for motor-cars, &amp;c.



G. s.'0G1Lv1E. WHEEL PoR MOTOR GARS, am.

APPLICATION FILED AJUNE 28, 1904.

u iifiirnn sterne? rafrnnr einirren,y

. LENCAIRN STUART GGILVI, 01T UODBRIDGE, ENGLAND.

WHEEL FR IvGTR-CRS, &c.

esagera.

slecifiction of Leners raient. Pabmntd 563913124, 1909,

' rignal application filed August 3, 1903, Seriall No. 163,091i-Dividedrand this application yiled June 2S,

" 1904. `Serial No. 214,491.

ldivision. v

To all 'whom-it may conce-rn:lv Y

Be` it known that l, GLnNo'AiRN STUART Germinasubject of the KingeiGreat Britain and ireland, residing at The Lodge.

l Voodbridge, in the countv of'Suiiollr, Eng-l land, have inventedcertain new and useful Improvements in Wheels for Motor-Cars and otherVehicles, of whiclithe following is a specification, for which l haveobtained patents inV Great Britain, ilo. 631, dated January 9,' 1903,and No. 5,764, dated March 12, 1903; in Francedated July 29, 1903,No-834,248; in Belgium, dated July 29, 1903, No. 171,766, and in Italy,dated September 30, 1903, No. 213, Vol. 176.

rlhis invention relates to improvements in' the construction of wheelsfor motor cars and -other vehicles, .and was originally included in theapplication tiled August 3rd, 1903, Serial No. 168094, ot' which this isa The object of the improved construction which .constitutes the presentinvention is to provide a durable tire for such wheels, by the use of.which a very considerable resilience is obtained without incurring thedanger of Xpuncturesvhich is inseparable from fthe use 'ofthe ordinarypneumatic tire. For

" thi'spurpose'theiiin and telly form sepa "f "driviiig" purposes -insuchrnanner that 'there Tate/constructions andare correlated vfor isa..certaiii'relative freedoml o'inovemeiitbothiin a radial and inaeirciinifereiitial dii i rc'ction. The rim is compounded of an outer'riinof lwood',"or "other suitable 'material `or V,inate-riale, iiiidtwo,m'etallsider rings, :one on eachside-Iof the outer rini to whichthey are tf'bolted',""forming a 'channelf which' einbiaces .theellyfofhe wheel.

`'and 'theouter rim is a suitable resilient mel' Between the tellyffydium or device, which vinaycon-sist of solid v f1-tively.f i Y,

In theaaccoin'panying drawings, Figure 1 2 and 3 are'secti'onsfon'lin s'or hollowy cushions ofilindia-rubber or other ,elastic material, onwhich the coinpoiiiidriin iioa't-s, the' driving l'ieingeectedby means,of la special disposition of stops fixed,y to or formingl part of therim and telly-respecisr'in elevations'wi'th"pai'tfofone oi" the siderings removed 'ofp'a'rtof a wheel ,constructed according tothe presei nton, and Figs.:l

. bar.

wooden telly a which isseciii'ed to the wheel hub in any suitablemanner, is surmounted by a? rim of iron.orether'suitable inatei-ial,over which is freely mounted a i'alse felly c which inay convenientlyconsist of a thin steel band formed with or without a number ofprojections on its outer periphery, between which and a woodenrim e arein terposed elastic cushions f2 which inay con'- sist of solid, hollow,orcored-balls or rollers of india-rubber. The wooden rim e issurinounted by an outer rim e2 ofsuitable section secured by rivets orbolts tothe wooden rim. Two side rings d', which may alternatively bebuilt in segments suitably secured to each other, are placed one on.each side of the rim e, to which they aresecui'edby bolts and nuts c3.rl`herim e and outer rim e2 may be built in corresponding sections asshown in Figi 4, and each section is arranged to be separately removableto vgive raccess to the space occupied by .the resilient medium. The rimdriving stops consist of a number of bars a, four are indicated `in thedrawings, which'are passed from the inner side through slots in thetelly a, felly rin b and loose "band c, andare secured to the sideriiigs'cZ near their Iinner and outer peripheries by bolts d2, distancepieces n being inserted on' either side of the driving Thesedistance'pieces .in the case of the inner'end of the driving' bar may beintegral with the latteras shown in Fig. 2.

The rings CZ are preferably, increased in depth in the regi'onvof thedriving bars and may be cut away on the'vifn'sgde,between the drivingbars to diminish tlieirweight-.- Each of the rim driving stops @worksbetween a pairq of driving stopsr on theielly Vconstituted by a slottherein, the rear iaceao of which being in the case of ka driving Ywheelthe,-,forward driver.; and .the lfront face, p of I'irllieelot-, beingthel backwardfdriying stop.

heiiorward, driving face of., the ,sl pt ,is pref;

other stops may alisogbe` vprovided th VsuChrollcrS, or they maybe`faced with india-rubber, leather 0r1tliedlile,. for the purpose Aoi"ldeadening the vsoundniadeby the stops as they come into engagement. The

slots inthe felly are closed on the inner side by spring sheaths n2,which are fastened at one end on the inner periphery of the felly byscrews a3 and bear lightly on the front.

and rear faces of the driving bar n', thus eX- cluding dustand stonesfrom the driving slots. When the rim is of wood, this surface wouldpreferably be faced with an iron band. f

In the modified construction illustrated in Figs 4 tof6, each rimdriving stop consistsv of a pair of bars n one on either side of thewood rim e and secured thereto and to the side rings d by bolts di. Thedriving bars a also inclose the felly and felly band a', b, and workbetween stops secured thereto and consisting of pins 0 p passing throughthe felly and projecting on either side thereof in the path of the twindriver. The vbeading a2 of'the felly and also if necessary the edges ofthe felly bandare cut away between the' stops 0 p forming an'externalrecess of suffi? cient length and depth to clear the driving bars forall working positions of the latter.

' for this purpose their projecting ends are of reduced diameter, theshoulders thus formed abutting against cover plates o p secured on theoutside of the felly, and the bodies of the stops being preferablymounted in metal tubes 'g passing transversely through the felly.- vThetubes g are itted with lubricators g by which; the bearings oftherevolving stops may be conveniently lubricated. The ends of the coverplates 0 p are cut away to fit snugly around the rear sides of therevolving stops. The driving bars are held up against the side rings dby means of distance tubes cl3 encircling ,the bolts cl2l and bytransverse distance plates (it having reduced ends which are stepped incorres-pondingly-shaped holes or slots in the driving bars. the wheel isfor heavy cars and rough roads, preferably of iron formed` withcorrugations or dentations to reduce slipping, but Kany other suitabletread may be substituted. A loose antifricti'on band, such as shown inthe construction illustrated in Figs. l 2, and 3,

o may be interposed between the elastic cushions and the felly rim b soas to reduce theA wear on the elastic cushions due to relativecircumferential movement of the lfelly and rim.

The outer rim e2 or tread of In wheels constructed as herein dcscribml.the felly stops are arranged to give a clearance for the circumferentialplay of the driving bars, which is at least equal to the total radialplay between the felly and the rim, so that the wheel cannot becomelocked until such radial play has been .entirely taken up. By meansofthis special disposition of four sets of driving stops and therelative circumferential and radial freedom of the rim andfelly,'therewill generally, and in fact always, except inthe exceptional case inwhich the rim and felly are momentarily concentric, be only one set ofdriving stops in operative position ineach wheel and this set situatedin the forward half of the wheel in the direction of motion in the caseof a driving wheel and in the rear half in the case of a trailing wheel,the stops coming into engagement and disengaging at intermediate pointsbetween their" highest and lowest po sitions or in the neighborhood ofthesepositions. As a result of this construction also, when the wheelencounters an obstacle, a considerable part l of `the weight usuallyborne by the elastic cushions in compression est on the underside oflthe wheel is thrown on the driving stops then in engagement, so that insurmounting the obstacle the actual driving effort is reinforced by aforce the mo-l ment of which depends on'the weight taken by theoperating driving stops and the position of these stops at the instant.

Having thus described the nature of my said invention, and the bestmeans I know of carrying the same into practical effect, I claim l. InWheels for road and other vehicles, the combination with a felly rigidwiththe Wheel hub, of a floating rim, an elastic medium interposedbetween but separate from the said rim and felly, driving bars carriedby and projecting inwardly from said rim, and non-,elastic stops on thesaid felly cooperatingwith the said bars, each bar being interposed withclearance between a pair of stops to allow a limited but absolutely freecircumferential movement between said rim ,and fplly, substantiallyasdescribed. j 2. n wheels for road and other vehicles,

said twin bars for driving purposes, substantially as described. A

3. A 'wheel for road and 'othei` vehicles comprising an outer rim', siderings attached thereto, a felly rigid with the wheel hub and adapted toslide between the said rings, Aelas-y llt) tic rollers between the rimvand elly, a plurality of twin driving bars rigid with and projectinginwardly from the said rim, each pair of said bars inclosin-g the fellywithin its limbs, and pairs of stops rojecting outwardly from each sideof the elly, each such air being arranged to coperate directly ordriving purposes with one of the said twin driving bars, substantiallyas described. 4. In wheels for road and other vehicles, the combinationwith a felly rigid with the -wheel hub, of an outer' rim, an elasticmedium interposed between but separate from said felly land rim, aplurality of driving bars carried by the rim and stops on the .of theelastic medium between the rim and felly, substantially as and for thepurpose set forth. if

In testimony whereof I have signed my name to this specication in thepresence of two subscribing witnesses.

GLENCAIRN STUART OGILVIE. Witnesses R. SMITH, lJOSEPH MILLARD.

